LOCATION

PH11 8AT - Flood, Heat, Air & Subsidence Risk - Alyth

Perth and Kinross, Alyth

Flood: Very lowHeat: LowerAir quality: LowGround: Low

Climate risk summary for PH11 8AT

PH11 8AT in Alyth has a Very low flood risk. Heat risk is Lower, with a median (50th percentile) of 4 days above 25°C per year, averaged over the 2021-2040 period under the RCP8.5 high emissions scenario (Met Office UKCP18). Air quality is Low at PM2.5 4.1 μg/m³, within the WHO annual guideline of 5 μg/m³ (Defra UK-AIR). Ground conditions are Low risk, with Glacial Till geology; shrink-swell risk is classed as improbable (BGS GeoSure).

How does PH11 8AT compare with the rest of the UK?

  • Air pollution: cleaner than 95% of councils
  • Heat risk: cooler than 95% of councils
  • Subsidence risk: lower risk than 58% of postcodes

What is the flood risk in PH11 8AT?

Flood risk at PH11 8AT is rated Very Low, based on SEPA flood mapping.

SEPA flood zone data shows very low flood risk for PH11 8AT in Alyth. The band reflects the highest flood risk within the postcode; some properties within this postcode may face little or no direct flood risk. For a specific property, a conveyancing search will confirm the exact flood zone position.

How is the air quality in PH11 8AT?

Air quality at PH11 8AT is rated Low, based on Defra UK-AIR annual mean PM2.5 data. Fine particulate matter (PM2.5) comes primarily from road traffic, industry, and domestic burning. Long-term exposure above the WHO guideline of 5 µg/m³ is linked to respiratory and cardiovascular health risks. Buyers and renters in higher air quality risk areas may wish to consider whether the property is near busy roads or industrial sources.

Is subsidence a risk at PH11 8AT?

BGS GeoSure data classes the underlying soil at PH11 8AT as Glacial Till, with shrink-swell hazard rated improbable (subsidence risk band: Low). Soil type and shrink-swell behaviour drive subsidence claims following dry summers; recent ABI data shows insurer payouts rose sharply after the 2022 and 2025 hot summers. A structural survey is the reliable way to assess ground risk for a specific property.

Where does this data come from?

This LocalRisk report for PH11 8AT draws on four official UK open data sources: SEPA flood mapping, Met Office UKCP18 climate projections, Defra UK-AIR PM2.5 monitoring, and British Geological Survey GeoSure subsidence mapping. Risk ratings are a screening tool, complementing - not replacing - the searches and surveys ordered as part of a property transaction. Data covers Perth and Kinross and is updated as new official datasets are published.

About the Perth and Kinross area

Perth and Kinross has a varied inland setting of river valleys, fertile lowlands and upland areas to the north and experiences cool, wet winters and mild summers, influenced by elevation and Highland weather patterns.